Gas cooking stove and range.



A. B. DU PONT.

GAS cooxme STOVE AND RANGE.

APPLICATION FILED AUGJD, 1917- Patented Oct. 22, 1918.

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APPLICATION FILED AUG.20, 1912. 1,282,056. Patented 001;. 22, 1918.

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GAS COOKING STOVE AND RANGE.

' APPLICATION man Ammo. l9l7. I 1,282,056. Patented. Oct. 22, 1918. 3 sums-sum 3.

1 ABDuPoNT i V i l ANTOINE BEDERMANN DU PON'I, OF CLEVELAND, OHIO.

GAS COOKING STOVE AND RANGE.

Application filed August 20, 1917.

To all whom it may concern:

Be it known that I, ANTOINE BEDERMANN DU PoN'r, citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements inGas Cooking Stoves and Ranges, of which the following is a specification.

My invention relates to an improvement in gas cooking stoves and ranges, and the improvement comprises the particular construction and arrangement of parts, all substantially as shown and described herein and more particularly pointed out in the claims. The primary object of the invention is to promote perfect combustion at the burners beneath the top cooking plate of the range, but other objects are also embodied in the details of the structure as will hereinafter appear.

In the accompanying drawings, Figure 1 is a plan view of a gas range embodying my invention and showing the oven and rear portion of the range in section to disclose the exhaust flue at the rear of the cooking top of the range. Fig. 2 is a sectional view I vertically and transversely of the range on line 22, Fig. 1. Fig. 3 is a sectional view vertically and longitudinally of the range, looking toward the rear thereof, and showing the horizontal draft flue at the rear partly broken away where it opens into the vertical passage which communicates with the chimney flue back of the oven.

The invention as disclosed in these several views is predicated largely on the use of a horizontal draft passage or exhaust flue F for the products of combustion from the gas burners 2 within the chamber beneath the top cooking plate of the range, and which draft flue communicates with the chimney flue 3 for the oven and its gas burners. In this connection it should be understood that the present range is of the type or style in which the chamber or space 4 containing the gas burners 2 is designed to be closed over its top during use. Thus, the holes in the top plate over the burners have lids to prevent the escape of gas fumes from the range, and if these lids are removed in cooking operations the holes will be closed generally by the pans or vessels set thereon.

It follows therefore that in a range of this kind'where the products of combustion are not intended to be discharged into the room a suitable draft channel must be provided to Specification of Letters Patent.

Patented Oct. 22, 1918.

Serial No. 187,056.

carry them off or imperfect combustion will occur. Perfect combustion also presupposes an adequate supply of fresh air to the burners, and while this is easily obtained if the draft passages are sufliciently large and open, I have found that it is also essential to properly locate the exhaust flue F relatively to the burners to obtain the most efficient working results. The invention herein therefore begins at this point and is differentiated from all other ranges of this general type or style known to me by the simple flue construction directly associated with the burners 2 and the chan'lbered space 4 in which they are located and which is clearly outlined in the drawings. As to this space the top plate 5 of the range constitutes the top of the chamber, and the pan 6 may be regarded as the bottom thereof, although said pan is usually a removable part of the range. The rear wall of the range forms the back of the chamber as a matter of fact, but an angle plate 7 which is secured to said wall and extends horizontally the full width thereof, may also be considered the back wall of said chahmber. This plate 7 forms a horizontal exhaust flue F of ample size to accommodate the needs of all the burners in chamber 4:, but in order that the burnt products and used air be carried away promptly from the burners and to stimulate the fiow of fresh air to the burners, the entrance or opening 8 to the exhaust flue F is especially placed lengthwise at the top of said flue in close proximity to top plate 5. The flue may be of the relative size shown in the drawings providing it has a capacity in depth and width commensurate to the needs of all the burners, and as shown the said flue extends below the plane of the burners while also extending above the same, and the slot or opening 8 is on a higher horizontal plane than the top of the burners. The elevated position of the slot relatively to the burners is important in that a positive and constant updraft is thereby produced in chamber 4: to supply the burners with fresh air and at the same time clear the space beneath the top plate from the burnt products of combustion. The present construction is also exceptional and original in that the horizontal flue F is built of a single angular strip of sheet metal secured upon the inside of the rear wall and occupies a space otherwise of no utility in the range but of ample capacity for my purpose, and

by merely separating the upper edge of the strip from the top plate 5 I produce an elongated opening and entrance 8 to the flue above the top plane of the burners The outlet for this horizontal tlue is at the end thereof at opening 10 in CliYiSlOil wall 11 or the range, and, wiich Wall separates the cooking side of the range from the baking and broiling oven 12. This oven rises to a higher eleration than top plate 5 and has a vertical draft space or passage is at the rear thereoi in line with exhaust flue 1* (see Fig. l) and the chimney flue 3 is connected with the upper end of this passage and serves to carry away the products of combustion from the burners 2 in chesnber a and also the burner 15 Within the oven 12. Moreover, by arranging and building the titles as described E ani enabled to construct the range with a smooth piain back Wall Without protruding parts and the construction thereof is greatly simplified and the cost reduced, especially as no castings, elbows or special joints are required to unite the flue sections.

i i hatl claim is:

1 A cooking range having a top cooking plate and a burner chamber and gas burners beneath said plate and provided with an oven at one side of said p ate having a vertiflopies of this patent may be obtained for five cal draft passage at its rear and a chimney tiue open to said passage, and said burner chamber ha ing a horizontal exhaust due at its rear open at one end of said vertical drai t passage and arranged opposite the gas burners therein and also open in its upper portion for the exit of products of 00111- bustion from the top of said chamber aoove the top plane or said burners.

A kitchen range having separate cool:- in g and baking chambers With a continuous plain Wall at the rear of said chambers and draft fiues on both chambers Within said Wall and a chimney flue open to both said draft ilues the draft fines to the cooking chamber comprising a sheet metal strip bent to form said dues and having a continuous opening longitudinally along its top to receive the precincts of combustion flOlll burners in said chamber, and the said baking chamber having an inside draft flue open to said cooking draft flue and to said chimney tine a top plate ()YGI said cooking chamber and burners therein on a plane below the opening to the draft flue at the rear thereof.

Signed at Cleveland, in the county 01 Cuyahoga and State of Ohio, this 4th day of May, 191?.

ANTOINE BEDERMAUN DU FONT.

cents each, by addressing the Commissioner of l e/cents,

ashington 3?, 8. 

